In this study, nanocomposites of Al2024 alloy reinforced by multi-wall carbon nanotubes (MWCNTs) were produced and optimized using mechanical milling and hot pressing method. Nanostructured Al2024 alloy was synthesized through mechanical milling of the alloy chips after 30h. Morphological and structural changes of Al2024 were examined during mechanical milling using Scanning Electron Microscopy (SEM) observations and X-ray Diffraction (XRD) analysis. Moreover, thermal stability and structural changes of nanostructured Al2024 were evaluated via isothermal heat treatment at various temperatures for different times. MWCNTs with 0-3 volume percents were added to 30h-milled Al2024 powder particles. Differential Thermal Analysis (DTA) was conducted on nanocomposite powders containing 3vol% of MWCNTs. Mechanical milling of nanocomposite powders for 4h, hot pressing at 500?C and 250MPa for 0.5h were selected as optimized parameters for bulk nanocomposite preparation. In order to probe the effect of hot pressing on structural changes, XRD analysis was done on nanocomposite samples before and after consolidation. Variation of relative density of consolidated samples versus MWCNTs volume percent was measured using Archimedes technique. Hardness and compression tests were applied on bulk samples in order to evaluate their mechanical properties. Wear behavior of nanocomposites were characterized using pin-on-disk test method, as well. Mechanical milling applied on Al2024 chips for 30h resulted in particle size reduction from 500µm to 10µm so that equiaxed morphology was achieved for powder particles. Al grain size and lattice strain decreases and increases to 30nm and 0.45%, respectively. Investigation of grain growth kinetics showed that nanostructured Al2024 had high thermal stability so that Al grain size remained in nanosized scale (about 70 nm) even after heating at 550?C for 3h. DTA analysis showed an endothermic peak at ~632?C due to Al2024 melting and an exothermic peak at 632-658?C related to Al and MWCNTs reaction and consequently Al 4 C 3 formation. With MWNTs addition up to 2vol%, relative density remained at 98%, and hardness value increased to 245HV. Ultimate compressive strength of nanocomposites found a maximum value of 814MPa at 2%vol MWCNTs addition which were 365%, 53% and 15% higher than that for Al2024-O (coarse grained Al2024 in annealed condition), Al2024-T6 (coarse grained Al2024 in artificially aged condition through T6 temper) and nanostructured Al2024. Furthermore, Young’s modulus value was increased from 74GPa for nanostructured Al2024 to 94GPa at 2 volume percent of MWCNTs. Keywords Al2024-carbon nanotube nanocomposites, Mechanical milling, Hot pressing, Mechanical properties, Wear behavior